7. Step 2 Elig: Patients must have fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study. a. Myelosuppressive chemotherapy: Must not have received within 2 weeks of entry onto this study. b. Hematopoietic Growth Factors: At least 7 days since the completion of therapy with a growth factor. c. Biologic (anti-neoplastic agent): At least 7 days since the completion of therapy with a biologic agent. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur. These patients must be discussed with the study chair on a case by case basis.